A large-scale energy storage system aimed at integrating renewables into electricity networks has been completed on the Hawaiian island of Kaua’i, paired with the state’s biggest PV array to date.

Microinverter specialist Enphase has revealed details of plans for two residential solar-plus-storage trials in Australia and New Zealand and publicly put a figure on prices for its AC battery product.

US battery manufacturer, ViZn Energy, has teamed with financial services company, LFC Capital, on a programme to lease integrated solar and storage systems to property owners.

The International Renewable Energy Agency (IRENA) is to run a workshop in Germany next month to canvas final opinion ahead of publishing its first roadmap for electricity storage technologies.

Investment bank Citigroup is predicting a 240GW global battery storage market worth US$400 billion by 2030 as increased deployment creates a “virtuous circle” of falling costs.

The growth of technologies such as PV and storage will hit utility company revenues to the tune of US$130 billion a year within a decade, according to a study published yesterday by management consultancy Accenture.

Imergy Power Systems, the California-based energy storage specialist, has received an order for four of its ESP5 vanadium flow batteries from Hawaiian renewables firm, Energy Research Systems.

Sunworks, the installation arm of PV manufacturing start-up, Solar3D, has begun offering battery storage systems in its solar power projects.

The Swiss and Chinese power engineering firms ABB and BYD have revealed a collaboration to develop new storage technologies.